Locomotive-headlight control



1,333,205, l Patented Mar. 9, 1920.

2 SHEETS-SHEET l.

3. FITZGERALD AND H. H. WALTON.

LocoMoTlvE HEADLIGHT CONTROL.

APFLICATVION FlLEVD JUNE-IO, 1919.

Patented Mar. 9, 19.20.

2 SHEETS-SHEET 2.

HARRY n. 'FITZGERALD ann nanas in."wanton,Y or"iiiiiivifriris,` Tiiimns's-E.

"KLoooiiiofrivirnneniiienrveonriton Y Specification Gfletfers'ratent. 'Y Y atented Ma-nf);

v; AAppIicatioiilmediante-1G, 1919. lSerial No., SGLLCQO.

l'oaZZw/liloni/t may concern.' I

it .known that we, Hanni' l. Fira- \n and HARRY l-l. .VALioiv, citizens of f cited States, residing at Memphis, in l county ot Shelby and Statel 'of Tennes- Y see, have invented certain new and usetul iproi'eiiients yin Loconiotive- Headlight Controls, oit' which the following is a specilication. l

This invention relates to dirigible headlights such as those carried by a railway locomotive, andthe object ofthe same is to n tui-n the headlight troni-'sideto side autoinatieally by the lateral swinging inove-Y iinents ot' the pony truokso that when theA loeoniotive reaches a curve the-beam ot light y "from the headlight will be immediately de- Y' liected accordingly.V

Y The invention consists of a shaft autoiiiatieilly `oscillated by the lateral swing ot'V .said truck, and connections between said shaft and a rotary table which supports tlie'lieadlight; or more specifically', the invent-ionl includes a second shattattached to said table, and workii'igr connections between the shafts so that a limited loscillation ot" the first orpriinary. shaft by the swing ot the trucl" imparted in an inereaseddegree to the secondary or lamp-table shalt and thereby a small movement of the truck is' ainpliiieil into a Considerable movement ot the headlight.

in the detailed construction and arrange-V iiie'nt et )arts to adapt them to the staiidand make ot locomotive-so that the structure can be readily applied thereto, consideration has been given to the relative vibraf tion between thetruck and the engine traine, and the invention includes means flor 'permitting sueh vibration. Vlalso, means,

are present for adjusting the degree to which` the table-shaft is turned. Finally,

`means are also present for disconnecting this shaft from the remainder of the mechanism so Vthat'the boiler head can be removed as is so often necessary.

Details ot the preferred embodiment ot this invention are set forth below, and relt'- Y erenee is made to the drawings wherein:

Figure 1 is an elevation of 'the forwardl portioiiof the standard type of locomotive', with this invention applied.

Fig.` 2 is a. diagram giving a plan view of the pony truck and showing the connection oit this structure therewith.

Fig. 3 isa genera-l perspective view ot all v parts otfthe table and Vits support. y Fig; il` is a sectional detail showing the connection of the. lamp-table.' f n Fig. 5 is adetail of a pinQand its Cotter.I The standard type oflocomotive known'as Erie K-a is illustrated in- 'l outline herein,

butv we are concerned vonly withthe .liront wheels 1 of the pony .truck 2 4pivotally mounted by' the cradle pin "3* beneath the engine-traine 4, the latter supporting the` boiler 5 having` a removable head-6 carrying the usual platto'rm` 7V and uponl w nchthe secondary Vshaft with vthe mechanism except the lampheadlight 8 is ordinarily fastened. *To the the lower end ofthe primary shaft 15 troni which said crank vleads forward so that it stands usually directly .over the transverse center ot the truck. i Said shaft ex'- tendsupward througl'i a. bushing 16- in the:

engine traine t, above whichf*bushing/tho shaift has acollar 17' g and near its upper end the shattis mounted ina bearing 18 carried by a bracket 19 wliieh-is attached Y to the locomotive Hat `a. vsuital'il'ef point Vas perhapsbeneathits boiler.

. Thev primaryshaft is double-cranked, and

by preference its ends aresquared'and the cranks applied to the squared portions and pinned.k Its uppermost `or driving crank 24C is shown so -pinned onthe upper-'end at V- 22. This Vcrank is by preference longer than 'the actuating crank lt and Y,has a series. of holes 23 greater in number for a purpose yet to appear.' Into one of these holes is dropped a pin 'having a head 26' at its upper end and a perforation 27 Vthrough its' body near its lower end so that a fastening device or key such as a cotter 28 maybe passed-therethrough. The pin also passes V.through a hole at the rear endy of a link 29 ywhiehis thus pivoted tothe crank 24 at the desired distance from its center of movement which is the primary shaft 15.

A secondary or-lamp shaft 35 has a driven .crank 34Vprojecting laterally from its lower end andY provided with holes 33v through one of ivliich'is assed another in 32 ivotall p l)V P cent-er of movement. -The shaft passes.`

upward through a split bearing of appropriate Vform and from which it may be removed asV described below. 1its herein shown, thi'sbeai'ing"consists of a bracketv 3G towhich `is pivoted an arin 37, theV bracket and arm having,` notches 38A adaptedtol coact and-'iiiclose theshat when these members overlie each other, and said members are provided with holes 39 which aline at that time for the insertion or a fastening device which may well bein. pin and its key as described above. Y

The headliiblfht"Y 8- ina)Y be detaehably mounted upon av tabled() by any appropriate means such are shoivnat il in Fig. el. Said table in'y turn is secured 'to the upper l.element 42 -of aba-ll bearing),l whereof Ll?) indicates the lower element and el the balls,

and the. lower element is shown as bolted at The secondary i5 upon the platform shaft 35 -passes uplthrough all these 'parts' and squared at 48 nea-i' its .upperend and reduced and threaded above the squared por- Y tion to receive a nut 50, the'sha'it itself by preference havinga collar 49 as shown to preventvibration causing the headlight and the table andthe upperl element 42 to beeoine dislodged from the lower element 43.

j Hoivevenit is quite'possible te support the headlight for oscillation on theplatiorm by other appropriate means, Y

`When the truck 2 is swung toene side be#v neath the frame el, the Vstrap 11 moves the Vvfront end `oit the actuating crank Hand cranks; the movement of the ydriven crank Vvturns the secondary shaft 3e., and the upper 'end oi the shaft through the table il() turns l the headlight toward thatjside to which Vthe track curves. l Vibration oi the truck 2 `with respect to the frame d is permitted because Y the long pin l2 may rise'and fall through rlhe relative degreeoi oscillation; imparted to the second.

the hole 13 which it engages.

ary shalt may be varied by altering' the point oi" connection between the link and the drivino' craiikrd, and this is obviously done by se. ig the pivot pinV in the desired hole When it becomes necessary to remove Vtheboiler head, the'pin-Q is removed from .the driven crank 3i.- ivhioh is, therefore, e11- tii'ely freed from the i'eniaindeiioif the structure, and the split bearine' is opened sothat itsl aft is also fr =ed therefrom, and now the boiler head can be swungI iliit be hinged or can bereinored entirely, and the headlight and its entire support, together with the shait 35 anditsjerank 3l come off with the boiler head as will be clear.

laving described the*inventioinivhat is lai ied as new is:

In, headlight control,toi-application to a locomotive having` a removable boiler head and a platform projectiii rigidly from said head, the combination `with a table overlying` the platform and adapted to support Jdie headlight, bearings between the table and pl rin, and a shaft depeiuling rigidly from the table; of a bracket mounted i'igiclltY on the boiler beneath its removable head and having a split bearing detachably mnbracing said shaft, and Working connections between the sha-ft and ,the pony truck 'wherebyv swing of the latter' is converted Vinto oscillation of the shaft.

ln testimony whereof We ailix our signatures. f

Hanni n. rirZonRALn HARRY H. VVALTON. 

